新疆塔中地区地层孔隙压力预测  

The Grey Forecasting to Pore Pressure

作　　者：章景城[1] 曾永清[2] 方建波 

机构地区：[1]塔里木油田公司监督管理中心,新疆库尔勒841000 [2]中国石油塔里木油田公司勘探事业部,新疆库尔勒841000 [3]中石化西北石油局塔河采油二厂研究所,新疆轮台841600

出　　处：《内蒙古石油化工》2008年第2期123-124,共2页Inner Mongolia Petrochemical Industry

摘　　要：文章以灰色理论为基础,提出了钻头下部未钻开地层的孔隙压力预测新方法,建立了地层孔隙压力随钻预测灰色模型。该模型是根据上部以钻井段的测井结果,对钻头下部未钻开地层的孔隙压力进行随钻预测。将该项技术应用在新疆塔中地区,计算结果表明,该技术能够大大提高地层孔隙压力的预测精度,准确预报井下异常高压和复杂事故的发生,为现场钻井施工提供了可靠的技术依据。In our country, in the light of the methods of forecasting the pore pressure being too complex and the precision being not enough, this article has proposed to forecast the pore pressure by the Grey Theory. Grey theory is a mathematical method to forecast using not enough data. It has a simple structure and the advantage of high--precision calculation to solve the difficult problem of forecasting the pore pressure. An application to one well of Xinjiang region shows that this technology has a high prediction accuracy and can be used to predict abnormal formation pressure and kick accident.

关 键 词：预测 孔隙压力 灰色理论 精确度 

分 类 号：TE21[石油与天然气工程—油气井工程] N941.5[自然科学总论—系统科学]